Shares of Philip Morris extended their recent bounce Thursday after the U.S. Food and Drug Administration authorized the marketing of 20 of the tobacco company’s Zyn nicotine pouches.

The increasingly popular nicotine pouches pose a lower risk of cancer than cigarettes, U.S. health officials said.

Federal health officials on Thursday backed the public health benefits of nicotine pouches, authorizing Philip Morris International’s Zyn to help adult smokers cut back or quit cigarettes.